this will likely be mahmoud ahmadinejad's last u-n speech as iranian president. and he's in the ssotlight even before taking the odium. general assembly on tuesday againn to demonstrate its ime a nuclear program is peaceful - and meet its u-n obligations. america wants to resolve this issue ttrough diplomacy aad we belieee there is still time and space to do soo but that time is not unlimited. make no mistake, a nucllar-armed iran issa challenge that can be conttined. on the campaign trail, republicannrival mitt romney said the presidentts worked. words are words. ou need to showwthe kind of action that suggests tt them that we're serious bout what we're saying. former president bbll clinton told cnn's "piers morganntonightt heedoesn't believe iran's nucleaa ppogram as the country insists. morgan &poff cam: do you trust ahmadinejaa? clinton: not on this, i don't. and in an interview that aired earlier this eek, ahmaaiiejad peflected on his upcoming speech. i have been coming to assembll for eight years now, seeking progress aad friendll relations with all nations